1. on

2. of

3. in

4. at

1. look at

2. look after

3. look into

4. look upon

1. Let them do this or they will die.

2. If he helps us, we shall win.

3. Move or you will die.

4. Work hard or you can‘t prosper in life.

1. couldn‘t have

2. don‘t have

3. doesn‘t have

4. didn‘t have

1. Weared

2. weard

3. wore

4. Wern